Radiator



Aug. 20, 1929. J. J. cUREL- Lo RAD I AT OR Filed June '7, 1925 S14/vento@ lllll Cal.

Patented Aug. 20, 1929.

UNITED STATES PATENT oFFicE.

JOI-IN J. CURELLO, OF NEW HAVEN, CGNNECTICU'I, ASSIGOR TO THE Gr a o MANU- FACTURING COMPANY.

RADIATOR.

Application filed June 7, 1926.

This invention relates to radiators, and more especially to that class of radiators used as a cooling medium for motor vehicles of the internal combustion engine type or the like.

More specifically the invention relates to.

an overflow pipe or vent tube and the method and means for attaching the same to the upper fluic tank or container of such a radiator, or to any container requiring an overflow pipe or vent tube.

The primary object of this invention is to provide a radiator for a motor vehicle, with a vent tube or overflow pipe secured thereto in such a manner that the same will not become detached or broken in service.

Another object of this invention is to provide a radiator with a vent tube or overflow pipe secured thereto in such a manner that the open end of the tube will be covered by a member which will act as a baffle-plate therefor to prevent the liquid in the upper tank of the radiator being splashed into the tube.

A further object of this invention is to provide a combined locating, securing and bafliing means in a radiator whereby the vent tube or overflow pipe will be connected to the upper tank thereof.

Still further objects of this invention are to provide means to secure an overflow pipe into the filling neck of the tank adapted to hold the liquid in such a manner that the operation of filling the tank will not be interferedwith, that no liquid or other material can directly enter the overflow pipe while such a tank is being filled, and that the overflow pipe will be secured within the filler neck with the open end thereof adjacent the upper end of the filler neck without the use of solder or similar securing means and in a manner to insure its efficient action as a vent pire- To these and other ends, the invention consists in the novel features and combination of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. l is a front elevation of a radiator embodying the features of this invention;

Fig. 2 is a vertical section through a portion of the upper tank and filling neck of a radiator and vent tube or overflow pipe, with the filler neck cap shown in dotted lines;

serial No. 1`14,158.

Fig. vSis a top shown in Fig. 2;

Fig. 4 is a side and top view of the vent tube before assembling the same to the filler neck; v

plan view of the parts Fig. 9 is a section similar to Fig. 5 illusi trating a somewhat modified form of lug.

I have selected a radiator of the type used for cooling the cooling Huid of an internal combustion engine driven vehicle to illustrate the features of my invention. The radiator shown at 10 in Fig. l comprises an upper tank 11, a lower tank 12 between which is located the core 18, through which the cooling fluidV passes from the upper tank to the lower. The upper tank 11 is provided with a filler neck 14, having a filler cap 15, removably secured thereto by cooperating screw threads.

A vent tube 16 is provided for relieving the pressure within the cooling system and acts as an overflow pipe for the upper tank 11, one end of which is preferably secured within the filler neck 14 adjacent its upper' open end. The tube 16 extends downwardly and passes through the casing of the radiator, preferably below the lower surface of the same in order to discharge downwardly without the radiator, as shown at 17, Fig. 1.

The filler neck 14 is provided at the time of making the same, with a lug or tongue 1S, which preferably is struck downwardly into the position shown in Fig. 2, before the filler neck 14 is assembled to the radiator tank 11. The tongue 18 may be allowed toA remain as stamped out from the material disposed laterally as shown in Fig. 6, and later forced into position after assembly of the neck to the tank, if it is desired. The lug 18 comprises a laterally and inwardly projecting portion 27, and a downwardly directed portion 28. The filler neck 14 is also provided, in this instance, with an inturned laterally extending flange 26 about the edge of the opening in the middle thereof, and formed from the material of the neck. The laterally extending portion 27 of the lug 18, in this instance, merges into a portion of the flange 26 at the point of jointure with the neck.

The vent tube or overflow pipe 16 is preferably provided with a distorted portion 19 at its upper end. In this instance, the dis torted portion 19 is formed by flattening the end portion of the tube 16 for a distance of its length, as shown in Fig. 4.-, the greatest amount of such distortion being upon a portion of its periphery only. By distorting the tube end as illustrated, an effective shoulder like form is provided as at 8() which assists in properly locating the tube y relatively to the radiator and insures that the end of the tube does not abut the portion 27 ofthe filler neck. Other forms of tube or tube surface distortions are possible other than the flattened portion 20 by the use of which the advantages contemplated will be obtained.

The vent tube 16 is forced upwardly in such a manner that the distorted end 19 is disposed between the portion 28 of the tongue 18 and the inside of the filler neck, Where it is heldl securely by the resiliency of the tongue 18 and of the distorted portion of the tube,the material of both the filler neck and the tube being siightly resilient.V Due to the cooperation between the distorted portion of the tube and the tongue portion 28, the tube is retained securely in place againstv rotation,- and dislocation vertically or laterally. The tongue portion 27 Which extends over the upper open endfof the vent tube 16, acts as a battle plate for this end and prevents the fluid in the upper tank from splashing thereinto. Likewise, the portion 27 prevents the direct entrance of the iuid into the vent tube when the tank 11 is being filled, and the downwardly directed portion 28 cooperates with the adjacent side of the filler neck to form a guarded or protected passager-Jay for the fluid before it enters the tube 16, so to prevent floating foreign matter of relatively large size from-entering the tube and blocking it up.

As previously noted, the tongue or lug 18 may be allowed to remain in a lateral extending position, as shown in Fig. 6. In such. an instance, the tube 16 may or may not be previously distorted before assembly. lVhen the tube 16 is not previouslydistorted, a distortion in the form of an ellipse is formed when the lug 18 is forced downwardly into tightengagement With the tube 16,' whereby the advantages noted above will be obtained.

lVhile it is preferable to distort the upper end of the tube, the lug 18 may be distorted or formed in such a manner that sufficient vthe portion 27.

frictional gripping ofthe tube will be obtained Without changing the form of the tube 16 when it is clamped beneath the lug portion 28. One Way of accomplishing this is by forming the portion 28 of the lug 18 f in such a manner that it Will have a crosssection of V-shape as shown at 25 in Fig. 7.

In some instances it is desirable to provide an opening in the lug 18 adjacent the upper` end of filler neck, as at 29 in Fig. 9, so that the position of the tube end may be observed in assembling the parts to preventthe end thereof against being forced into contact- With the portion 27 and close the opening in the tube, thus destroying the effect desired. In other instances, the end of the tube 16 may be cut at an angle as at 31 in Fig. 8, whereby the same effect Will be obtainetL and the vent tube will not be rendered useless should the end thereof abut In this instance, it is preferable that the end abuts the portion 27 so as to locate the tube relatively to the rac iator.

While I have shown and described a preferred embodiment of my invention, it Will be understood that it is not to be limited thereto in all of its details, but is capable of modification and variation which will lie Within thev spirit of the invention and the scope of the appended claims'.

lVhat I claim is:

1. In a radiator, a fluid container having a` lille/r neck, a vent tube extending into said neck and having an exterior surface in en gagment against the interior surface ofsaid neck, and means carried by saidneck above the open end of said tube and adapted to engage said tube upon the exterior surface thereof opposite the neck engaging surface to hold said tube Within and tightly against the engaged surface of said neck.

2. In a radiator, a fluid container having a filler neck, a vent tube having an end extending into said neck, and means carried by said neck to engage the exterior' of said tube, one of the engaging parts being distorted at the contacting portion thereof With the other to prevent dislocation thereof.

A tank having a filler neck and a vent tube extending into said neck, a portion of said vent tube engaging the interior surface of said neck and being distorted at a portion opposite to the portion engaging said neck, and means extending from the mat-erial about the opening in said neck over the open end and the distorted portion of said tube into clamping engagement With the latter to hold said tube in said neck against the engaged surface thereof. Y

4. In combination, a filler neck for a container, and a vent tube, said vent tube having an end extending into the filler neck and with the exterior Wall thereof in conleo tact with the interior wall of said neck, and a tongue extending inwardly from the open end ot said neck over the open end of said tube and extended into engagement with the exterior Wall of said tube end opposite the wall thereof in contact with said neck to clamp said tube against the neck wall.

5. In a radiator, a container having a filler neck, a vent tube in said container and having its upper end in engagement with said neck, a tongue formed integrally with the upper edge of said neck and extending laterally thereover in the making of the same, said tongue being disposed over the open end of said tube and spaced upwardly' therefrom, and then bent downwardly substantially parallel with the interior wall of said neck into clamping engagement with the exterior portion of said tube opposite the portion in engagement with said neck tol retain said tube in engagement with said neck.

6. In a radiator, a container having a filler neck, a vent tube in said container and having its upper end in engagement with said neck, a tongue integrally connected to said neck above and extending over the open end of said tube, and then extending downwardly in clamping engagement with and over the exterior of said tube to hold said tube in engagement with said neck, and means to vertically locate the upper end of said tube with respect to the tongue portion extending over the open end thereof.

7. In a Huid container, a ller neck, a vent tube therein having an open end, and means carried by said neck spaced from and extending over the open end of said tube, said means engaging said tube upon the exterior periphery thereof to retain it within said neck, one of said engaging parts being distorted to insure a firm engagement therebetween.

8. In a fluid container, a filler neck, a vent tube therein having an open end, and a baffle carried by said neck spaced from and extending over the open end of said tube, said battle firmly engaging said tube upon the exterior periphery thereof to retain it within said neck.

In witness whereof, I have hereunto set my hand this 3rd day of June, 1926.

JOHN J. CURELLO. 

